Add Bambu Lab predefined colors and finishes

- Parse Bambu Lab PDF to extract all official colors and finishes
- Add 77 predefined Bambu Lab colors with accurate hex codes
- Update finish dropdown to show only Bambu Lab finishes
- Make color selection dynamic based on brand and finish
- Show Bambu Lab colors only when BambuLab brand is selected
- Auto-fill hex codes for Bambu Lab colors
- Allow custom colors for other brands
- Add database migrations for finish types and colors
- Import all Bambu Lab colors to database

api/migrate.js

@@ -19,6 +19,25 @@ async function migrate() {
     
     console.log('Database migration completed successfully');
     
+    // Run additional migrations
+    const migrationsPath = path.join(__dirname, '..', 'database', 'migrations');
+    if (fs.existsSync(migrationsPath)) {
+      const migrationFiles = fs.readdirSync(migrationsPath)
+        .filter(file => file.endsWith('.sql'))
+        .sort();
+        
+      for (const file of migrationFiles) {
+        console.log(`Running migration: ${file}`);
+        const migrationSQL = fs.readFileSync(path.join(migrationsPath, file), 'utf8');
+        try {
+          await pool.query(migrationSQL);
+          console.log(`✓ Migration ${file} completed`);
+        } catch (err) {
+          console.log(`⚠ Migration ${file} skipped:`, err.message);
+        }
+      }
+    }
+    
     // Import legacy data if available
     try {
       const dataPath = path.join(__dirname, '..', 'data.json');